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Method for allocating radio resources under coordinated multipoint transmission/reception (CoMP) in long term evolution-advanced (LTE-A) system

A LTE-A, wireless resource technology, applied in wireless communication, electrical components, etc., can solve the problem of limited throughput gain

Inactive Publication Date: 2011-04-20
XIDIAN UNIV
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Problems solved by technology

The JPF frequency allocation scheme enables the users at the center of the cell and the users at the edge of the cell to have equal opportunities to use wireless resources, and overcomes the shortcomings of the FFAP scheme. Volume Gain Limited

Method used

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  • Method for allocating radio resources under coordinated multipoint transmission/reception (CoMP) in long term evolution-advanced (LTE-A) system
  • Method for allocating radio resources under coordinated multipoint transmission/reception (CoMP) in long term evolution-advanced (LTE-A) system
  • Method for allocating radio resources under coordinated multipoint transmission/reception (CoMP) in long term evolution-advanced (LTE-A) system

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Embodiment Construction

[0051] see figure 1 , the implementation steps of the present invention are as follows:

[0052] Step 1, calculate the SINR of all users in the cell according to the signal received by the user l :

[0053] SINR l = | | H l w l | | 2 P l Σ k ≠ l | | H k w k | | 2 P ...

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Abstract

The invention discloses a method for allocating radio resources under coordinated multipoint transmission / reception (CoMP) in a long term evolution-advanced (LTE-A) system, which is mainly used for solving the problem of fairness of cell center users and cell edge users and the problem of resource allocation under the condition of superposition of cell coordination sets. The method comprises the following steps: (1) computing the signal to interference and noise ratios (SINRs) of all the users in the cell and dividing all the users into cell center users and cell edge users according to the threshold of the SINRs; (2) determining the cell coordination set of each cell edge user according to the user appointment method; (3) computing the priority values of all the cell center users and cell edge users on each resource block (RB) respectively under the single cell transmission mode and the CoMP transmission mode according to the proportional fairness algorithm; (4) constructing a table of highest priority values of the cell center users according to the priority values of the cell center users; and (5) allocating all the RBs in the system. The method can be used for improving the fairness of the cell center users and cell edge users in the system, and simultaneously can be applied to superposition of cell coordination sets, thus the throughput of the system is improved.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, relates to allocation of wireless resources, and can be used in a Coordinated Multipoint transmission (Coordinated Multi Point transmission / reception, CoMP) technology in a Long Term Evolution-Advanced (LTE-A for short) system Allocation of radio resources. Background technique [0002] With the development of communication services and the growth of people's needs, the future wireless communication system needs to support high speed and large capacity, but there are several problems in the existing communication system that make it difficult to achieve the performance goals of high speed and large capacity. Interference between cells is a serious problem. Because users at the edge of the cell are easily interfered by adjacent cells, the throughput of users at the cell edge is lower than that of users at the center of the cell. This problem has become a bottleneck restricting the ove...

Claims

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Application Information

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IPC IPC(8): H04W72/08
Inventor 李兵兵同钊刘明骞
Owner XIDIAN UNIV
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